Clutch mechanism.



PATENTED SEPT. a, 1907.

'13. M. W. HANSON. OLUTUH MECHANISM. APPLIGATION FILED AUG. 9, 1905 my wr T "Mun Md, 3

Z W I r 3 z UNITED s rA rns tantrum? "oi iuon.

ENG/i M. IIAXSON, OF HARTFORD, OONNEOTICU'IYA SSIGNOR TO PRATT WHITNEYCOM- PANY, OF HARTFORD, CONNECTICUT, A CORPORATION OF NEW JERSEY.

.eLU'ron MECHANISM.

Specification of Letters Patent.

Patentedfiept. a, 1907.

Application filed August 9, 1905. Serial No. 273,477.

To all whom it may concern.

Be it known that I, BENGT M. W. HANSON, a citizen oi Sweden, havingdeclared my intention of becoming a citizen of the United States,residing at Hartford, in the county oi Hartford and State ofConnecticut, have invented certain new and useful Improvements in.Clutch Mechanism, of which the following is a specifi= cation.

This invention relates to improved means for 1.11? filling therequirements or conditions'that occur in machine-construction forengaging or disengaging the power-transmitting devices from one shaft toanother shaft, and the object thereof is the provision of improvementswhereby the result desired may he accomplished in a quick and reliablemanner.

in the acctunpanying drawings, Figure 1 is a vertical sectional view oithe invention; Fig. 2 is an enlarged vertical sectional view embodyingthe improvements, showing the p sition of the parts when the clutch isin engagement. Fig. 3 is a vertical sectional view of the same partsshown in Fig. 2, showing the clutch-eleinents disengaged. Figs. 4 and 5are transverse sectional views of Fig. illustrating. respectively, theclutch in engagement, and disengagement.

'25 Referring to the drawings. a. portion of a frame A of a machine isshown, in Fig. i. and attached to a part of this frame by means ofscrews ii is a sleeve-bearing 2,

which has an cxteriial ilange 2 through which said screws pass. In thissleeve-hearing the driving-shaft i; is mounted and this shaft is madehollow, and through it a ll itl 4 passes. On one end of this rod is aknob 5, which may be grasped to withdraw or push in the rod to engage ordisengage the clutclueletnent hereinafter described.

At its inner end the driving-shaft 3 is fitted with a head I), which istransversely bored at 3 to receive a plunger lutch-pin 6. said pinhaving at its outer end a heveled ooth 7. and being also provided with aslot or aperture 8 for the reception of a device hereinafter described.

At the end opposite the knob 5, the rod 4 is provided with a flattenedhead 9 having an incline 9, a straight part ti'-, and a hook orprojection 9 as illustrated in Figs. 1, 2 and 3.

5 in the chamber 3 of the head 3, and abovethe clutch-pin n1 plunger 6,is fitted a helical spring 10, the tendency of which is to force saidplunger downward. In the slot 8 of the plunger the head 9 is fitted, andwhen said rod is pushed inward, as illustrated in i igshl and .l. theinclined part 9 of the head 9 will force the plunger 6 rearward againstthe stress of spring it). and will withdraw the clutching-point orprojectien 7 from the device with which it is engaged, but

when the knob 5 is grasped and the rod is pulled. outward, said springwill force the plunger Qutward and cause the upper wall of'the aperture8 therein to be seated in the depression termed by the straight part 9",and the teeth 7 will then be in engagement with the part to be driven,as shown in Figs. 2 and 4,-the projection or hook 9 serving as a stop toprevent the head 9 from being pulled out of said aperture.

Loosely ,rnounted on. the driving-shaft 3 and head 3/ is a sleeve 12,having at its inner end a pinion 13, and at its outer extremity a head14 surrounding the head 3 of said driving-shaft. A plug 15 having asoclget 15 conforming to the tooth 7 of plunger 6 is secured in a boreof the head 14, and the sleeve 12 is prevented from longitudinalmovement on shaft 3 by the end of the sleeve-bearing 2 and by the head3.

Designated by 16 is a gear with which the pinion 13 70. engages, andsaid gear may communicate motion to a shaftor other element (not shown)which it may be desired to drive. v

In a bearing 17 of another part of the frame A a flanged bushing 18 ismounted, and the driving-shaft '3 is journaled partly in said'bushingand partly in the sleeve-bearing}, the other, reduced end of saidsleevebearing being inserted in a bearing 19 in another part of saidframe; "While any means may be employed for driving the shaft 3, I haveshown a gear 20 keyed to said shaft between the bearings 17 and 19. Acollar 21 on the oute'r end of the shaft 3 prevents longitudinal inwardmovement of -19 same.

In the operation of the invention the shaft 3 is either continuously orintermittingly rotated by. any desired 3 5 means, for instance, the gear20, and in the position of the'parts illustrated in Figs. land 2 rotatesidly in the sleeve-bearing 2, butwhen it is desired to drive the sleeve12 and its pinion 13, the knob 5 is grasped, the rod 4 and its head 9are pulled inward, and the spring l0 throws the clutch-plunger 6 to theposition shown in Figs. 2 and 4, thus establishing a connection betweenthe driving-shaft and the sleeve 12, and actuating the parts to bedriven by said sleeve. Plug 15 serves as a hardened wearing-surface, andprevents lost-motion or ichattering due to wear at the points where theclutch-engagement is made.

iGhanges may be'made in various details of the invention, which is notlimited to the precise devices shown and described. r

Having thus described my invention what I claim is: i

1. The combination, with framework, of a sleeve beurlng projectingtherefrom; a tubular driving-shaft mounted in said sieevebenring, andhaving a chambered head; a 105 clutch-plunger having a transverse slotmounted in the chamber of the head; :1 spring {or throwing saidclutchrinclined and straight plunger in one direction a rod movable inthe bore of the driving-shaft, and having its end shaped to enter saidtransverse slot, and actuate the clutch-plunger against the stress ofthe spring; a power-transmitting sleeve surrounding the driving-shaftand its chambered head; and a complementai clutch-element carried bysaid sleeve.

2. The combination, with a sleeve-bearing, and with means for supportingthe same, of a tubular driving-shaft having a chambered head; plungermounted in the chamber of said head; a spring" for throwing saidclutch-plunger in one direction; a rod movable in the tubulardriving-shaft, and having an 'in clined portion entering the slot of theclutch-plunger, and serving to actuate said plunger spring; and a sleevesurrounding said driving-shaft and its chambered head.

3. The combination, with a sleeve-bearing, of a tubular driving-shaftmounted therein, said shaft having a chambered hend;a clutch-plungermounted in the chamber of Said head; a,spring ba c-king' saidclutch-plunger; a rod mounted in the boi'ezof the driving-shaft; meanscarried by said rod for actuating the clutch-plunger against the stressof the spring. a sleeve surrounding the drivingshaft, and having a headenveloping the head of said driving-shaft; a clutch-element carried bythe sleeve; and a power-i ransfnitting element also carried by thesleeve.

4. The combination, with a sleeve-bearing, of a tubular driving-shaftmounted in said sleeve-bearing", said drivingshaft having a chamberedhead; a transversely-slotted clutclrplnnger mounted in the chamber. ofsaid head; -a helical spring backing said plunger; a rod movable in abore of the driving-shaft, and having a head provided with portions,said head passing through the slot of the plunger; a powcr-transmittingsleeve loose on the driving-shaft, and also having a head surroundingthe head of said driving-shaft; a clutchelement carried atransversely-slotted clutch-' against the. stress of the I l i intestimony whereof I bythe head of the sleeve; and means for actuatingsaid tubular diivingshaft.

5. The combination with a bearing-sleeve, of a tubular driving-shaftmounted in said bearing-sleeve, said driving shaft having a chamberedhead; clutclrplunger movable in the chamber of said head; a spring fornormally throwing said clutcl1-plunger to is clutching-position; a rodmounted in the bore of the driving-shaft; a manipulating-device carriedby said rod; a head on the slotted end of the rod, said head passim,through the slot of the clutch-plunger, and havinginclined and straightportions and a stop projection; a powertransmittini: sleeve having ahead conforming to the head of the driving-shaft, said sleeve beingloosely-mounted on the driving-shaft; and a ciutclrelement carried bythe sleeve, and cooperating with said clutch-plunger.

(i. The combination, with a bearing-sleeve, of a tubular driving-shaftmounted in said sleeve and having a chamberedhead: atransversely-slotted clutch-plunger movable in the head; a spring forthrowing said clutch-plunger to its clutching-position; a rod movable inthe bore of the driving-shaft, and having a manipulatingknob a flattenedhead on said rod, said flattened head having inclined and straightportions and a stop, and being movable in the slot of .theclutclrplunger; a ciutch-iock carried by the CiliiCh-Dllliig&l; apower-transniittin: sleeve surrounding the driving-shaft, and having ahead encircling the head of said driving-shaft; and a plug carried bythe head of said po\ver-transniiting sleeve, and having a notch toreceive the tooth of the clutch-plunger. aiiix my signature in presenceof two witnesses.

BFNGT M. W. IIANSON.

'a transversely slotted

